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Vocabulary Word

Word: molecule

Definition: the smallest particle (one or more atoms) of a substance that has all the properties of that substance

Sentences Containing 'molecule'

Common sense tells us that a molecule of water is not the same as a molecule of vinegar; the molecules of each are extremely small and in rapid motion, but they differ essentially, otherwise one substance would be like every other substance.
What is it that makes a molecule of water differ from a molecule of vinegar, and each differ from all other molecules?
For example, the molecule of water has two different atoms, the oxygen atom and the hydrogen atoms; alcohol has three different kinds of atoms, oxygen, hydrogen, and carbon.
When the atoms comprising a molecule are all alike, the substance is called an element, and is said to be a simple substance.
Two atoms of the element hydrogen unite with one atom of the element oxygen to make one molecule of water.
A group of symbols, such as this, expressing a molecule of a compound is called a formula.
But to come to a stop involved the jamming of myself, molecule by molecule, into whatever lay in my way; meant bringing my atoms into such intimate contact with those of the obstacle that a profound chemical reaction--possibly a far-reaching explosion--would result, and blow myself and my apparatus out of all possible dimensions--into the Unknown.

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